Improvement in wh iffletrees



Whffl-etree.

No. 212,639. PatentedFeb. 25,1879.

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.Ihre for UNITED STATES PATENT OEEIcEo FREEMAN E. WILLsoN, sn., or coLUMEUs, onto.

IMPROVEMENT IN WHIFFLETREES.

Specification forming part of Letters Patent No. 212,639, dated February 25, 1879; application tiled December 3, 1878.

To all whom it may concern:

Beit known that I, F. B. WILLsoN, Sr., of Golumbus,in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Whifetrees; and do hereby declare that the following is a full, clear, and exact description ot' the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had tothe accompanyingdrawings, and to letters of reference marked there on, which form a part ot' this specification.

This invention relates to spring attachments for doubletrees and single-trees of wagons; and consists in the construction, combination, and arrangement of parts, hereinafter particularly set forth.

In the accompanying drawings, Figure l represents, in perspective, a whit'tletree provided with my spring attachment; and Fig. 2 represents the latter, in detail, enlarged.

A designates the wooden part of a whifiietree to which my invention is applied, and which may be either a single-tree or a doubletree. At its ends are hooks or eyebolts a a, for the attachment of the traces or sin gle-trees, as the case may be. Said eyebolts, or their equivalents, also serve to attach to said wooden part A, at the ends thereof, the outer' ends ot' two bars, B B. These bars together form the draft-rod. They extend obliquely backward and toward each other, and are then bent so as to extend forward parallel toV each other, passing through wooden part A, and being suitably held by nuts or washers b b from withdrawal through the same. rlhe form of these draft-rods may be considerably raised. A plate, G, on the front of the whitiietree shields the latter from wear.

The parallel parts b b of the whifdetree leave a space between them, which is occu pied by disks D D and interposed spring E. Front disk, D, is provided with two perforations, l d, whereby it is enabled to move backward over said bars, or allow the same to be drawn through it; and rear disk, D', has a lateral slot, d', which serves the same purpose. Said slot also allows the passage of the eyebolt E', whereby said whiftletree is attached to the pole or the double-tree, according as it is a single-tree or double-tree.

Eyebolt E has its forward end attached to disk D. rllhus the draft ot the horse or horses on the whiiietree causes parallel parts b b of bars B B to be drawn through said disk D, carrying with them disk D', so as to compress the spring E between said disks. The resistance of said spring lessens the shock or jar in starting or on any sudden motion.

"When my attachment is applied to doubletrees, the construction oi' disk D with its lat eral slot d becomes oi" great importance. It allows lateral play ofthe whiftletree over eyebolt E', and thus prevent-s straining or binding in case the horses pull unevenly, as generally happens, and thus insures the proper action of the spring.

The draft-rods B B practically form, with the slotted disk, acontinuous draft-rod, which also serves as a seat for the spring and a guide to hold the spring in position.

rIhe parts are easily constructed, light, and readily detached for repairs.

The form of spring may be varied considerably, and the invention may be applied to a plow or cultivator as readily as to a vehicle.

The rods may be arranged" outside of the spring instead of passing through it.

Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, in a whilletree, of a wooden part, A, bars B B, forming the draftrod, disks D D', interposed spring E, and eyebolt E', said disks being free to slide on said bars, and said disk D' being laterally slotted at d', substantially as and for the purpose set forth. y

In testimony that I claim the foregoing as my own I at'ix my signature in presence of two witnesses.

FREEMAN It. WILLSON, SR.

Witnesses WM. L. ENGLAND, JNO., W. COLLINS. 

